This informational document describes Mitel Network's current usage of DHCPv4 options 128 - 135, in order to provide input for the process of reclassifying the DHCPv4 site-specific options range as part of RFC 3942. This is also intended to complete the process of requesting options 128 - 135 be placed in the "Tentatively Assigned" state by IANA, as described in RFC 3942.